Finding the Fourth Proportional to 7,217,535.43, 9,960,198.61 and 3,954,473.92
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Solution
The fourth proportional to 7,217,535.43, 9,960,198.61 and 3,954,473.92 is: 5,457,173.85
Step by Step Solution
- Step 1: Write the proportion equation
7,217,535.43 : 9,960,198.61 = 3,954,473.92 : x - Step 2: Convert to fraction form
7,217,535.43/9,960,198.61 = 3,954,473.92/x - Step 3: Cross multiply
7,217,535.43x = 9,960,198.61 × 3,954,473.92 - Step 4: Simplify right side
7,217,535.43x = 39,387,345,641,265.25 - Step 5: Solve for x
x = 39,387,345,641,265.25/7,217,535.43 - Step 6: Final answer
x = 5,457,173.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.